Tji Roof Spans

Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability.

Tji roof spans.

The roof has 7 12 pitch. Tb 824 ceiling joist. The joist sit on top of 2 x 4 walls nailed to rafters. 9 16 tji joists design properties 6 floor span and load tables 7 8 tips for preventing floor noise 8 allowable holes 9 cantilevers 10 11 roof span and load tables 12 13 framing connectors 14 15.

Tj 9001 installation guide for floor and roof framing with tji 110 210 230 360 and 560 joists. The link below provides additional information and span tables for tji joists in ceiling applications. Secondly the ceiling joists and end connections will require further consideration if thrust loads from a conventionally framed rafter roof system are present. Engineered wood products ewp span and size charts for bci joists.

Tji joist specifier s guide tj 4000 july 2019. L span in feet d out to out depth of the joist in inches el value from table above for tji 110 210 230 and 360 joists δ 22 5 wl4 2 el 2 67 wl2 d x 105 for tji 560 joists δ 22 5 wl4 el 2 29 wl d x 105 material weights include tji weights in dead load calculations. Also available for the android os. Their dimensional stability helps resist the warping twisting and shrinking that can lead to squeaky floors.

Rafters are 2 x 6 24 oc set on 2 x 8 ridge board notched on to walls. Span calculator for wood joists and rafters also available for the android os. I would like to use the loft as a lounge possably adding a dormer on one side of the roof. The tji joist were developed about 50 years ago and continue to be a great engineered wood product providing strength and consistency for high performance floor and roof structures.

Tj 9510 installation guide for floor and roof framing with tji s31 s33 and s47 joists east canada. Fire safe construction 3 floor performance and tj pro rating 4 5 section 1. Tj 9006 installation guide for deep depth tji 360 560 and 560d joists.